Learning & Ethology Flashcards
John Watson
Behaviorism. Experiment w fear conditioning in Little Albert.
Edward Thorndike
Functionalist. Study on animals led to law of effect (the basis for operant conditioning)
Clark Halls theory of motivation or drive reduction theory
The goal of behavior is to reduce biological drives- reinforcement occurs when a biological drive is reduced
Konrad Lorenz
First ethnologist. Study animals in their natural environment, rather than in the laboratory
Second- order conditioning
A neutral stimulus is paired w CS rather than an UCS to elicit a conditioned response
Sensory preconditioning
Two neutral stimuli are paired together, and then one of the neutral stimuli is paired w an UCS. The other stimulus w also elicit the response
Contiguity
CS and UCS are contiguous (near) in time
Contingency
CS is a good signal for UCS
Blocking
CS is a good signal for UCS AND provides non-redundant info about the occurrence of the UCS. Rats-hiss experiment
Negative reinforcement
Increases prob of behavior. Includes escape and avoidance. Different than punishment which decreases prob of behavior
Discriminative stimulus
A necessary stimulus to receive reward following desired behavior. I.e pigeon only gets food if pecks a key when the light is on
Generalization
When org learns to generalize to similar stimuli (pigeon will peck not only to green light, but also yellow light)
Schedules of reinforcement
Fixed ratio- paid every 1000 envelopes
Variable ratio- slot machine
Fixed interval- paid weekly
Variable interval- parent responding to crying child
*VR is the hardest to extinguish & produces the most rapid response rate
Shaping (differential reinforcement)
To train behaviors that aren’t likely to occur naturally on their own (dog fetching slippers) so u reinforce successive approximations to the desired behavior
Behavior therapies based on classical conditioning
Often used to treat phobias or undesired behaviors (I.e alcoholism)